膜科学与技术

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Advanced treatment of TFT-LCD wastewater by A2O-MBR

Authors： WANG Huailin, YUN Jinming, GUAN Xiaolin , WU Keliang

Units： Jiangsu Kaimi Membrane Technology Co. Ltd., Nanjing 210049, China

KeyWords： membrane bioreactor; TFT-LCD wastewater; advanced treatment

ClassificationCode：X703

year,volume(issue):pagination： 2015,35(5):97-101

Abstract：

Using the A2O-MBR combined process for treating TFT-LCD wastewater, and the treatment effect and operational stability were studied. The experimental results showed that the combined process of A2O-MBR has a good treatment effect and stability of TFT-LCD wastewater, under the experimental conditions, the effluent COD, NH3-N, TN, TP and turbidity were ≤35mg/L, ≤5mg/L, ≤15mg/L, ≤0.33mg/L, ≤0.2NTU, meeting the requirements of The reuse of urban recycling water--Water quality standard for urban miscellaneous water consumption (GB/T18920-2002). During the test, MBR system was stable operation at high flux, and the transmembrane pressure always between 0.04bar to 0.06bar, membrane permeability has a good recovery performance under the chemical cleaning of low concentration.

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Reference：

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